Home / 31,648.71-47,477.25-11,655.48

Finding the Fourth Proportional to 31,648.71, 47,477.25 and 11,655.48

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Solution

The fourth proportional to 31,648.71, 47,477.25 and 11,655.48 is: 17,484.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.71 : 47,477.25 = 11,655.48 : x
  2. Step 2: Convert to fraction form
    31,648.71/47,477.25 = 11,655.48/x
  3. Step 3: Cross multiply
    31,648.71x = 47,477.25 × 11,655.48
  4. Step 4: Simplify right side
    31,648.71x = 553,370,137.83
  5. Step 5: Solve for x
    x = 553,370,137.83/31,648.71
  6. Step 6: Final answer
    x = 17,484.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.